In a large saute pan, heat the olive oil over moderately high heat.
Add the garlic and saute until softened, about 1 minute, stirring often.
Add the carrots and cook until tender, 8 to 10 minutes.
Stir and shake the pan constantly to prevent sticking.
Add the broccoli and zucchini and saute for another 3 to 4 minutes, stirring frequently.
Add the pepper and cook for 2 more minutes, stirring and shaking the pan constantly.
Season with salt and pepper to taste.
Bring a large pot of lightly salted water to a boil and cook the pasta according to package directions.
Drain well and transfer to a serving bowl.
Toss with the vegetables and season with salt and pepper.